US Bridges

HWY Myst Val Pky over Water Alewife Brook

Fair

Middlesex County, Massachusetts · .4 MI N of Broadway · Structure no. A100144D1DOTNBI

Built
1908
117 years old, rebuilt 2013
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
111 ft
1 main span
Daily traffic
26,000
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Myst Val Pky over Water Alewife Brook is a concrete arch - deck carrying HWY Myst Val Pky over Water Alewife Brook in Middlesex County, Massachusetts. It was built in 1908 and reconstructed in 2013, so it is 117 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 26,000 vehicles a day, roughly 9% of them trucks, projected to reach 32,849 by 2032. The structure is 111 ft (33.8 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Myst Val Pky
CrossesWater Alewife Brook
Location.4 MI N of Broadway
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.41461, -71.13246
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating74.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length111 ft (33.8 m)
Longest span40 ft (12.2 m)
Deck width65 ft (19.7 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2024)
Projected traffic32,849 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$796,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Myst Val Pky over Water Alewife Brook built?

It was built in 1908, making it 117 years old in 2025. It was reconstructed in 2013.

What condition is HWY Myst Val Pky over Water Alewife Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does HWY Myst Val Pky over Water Alewife Brook carry?

About 26,000 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is HWY Myst Val Pky over Water Alewife Brook?

The structure is 111 ft (33.8 m) long with a longest span of 40 ft (12.2 m) and a deck 65 ft wide.

Who owns HWY Myst Val Pky over Water Alewife Brook?

It is owned by the State Highway Agency.